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What cause the heater to blow out hot air when the automatic control is not working on a 1996 buick rivera supper charge?
Wiki User
∙ 15y ago
under your hood by the fire wall you will see your heater motor and hose coming from your radiator. there is a gate valve on the heater hose, it may have wires to it or a hard wire for sliding. this valve must be open to allow hot water to get to the heater core that is under your dash. if you can locate it, all you have to do is close the gate valve and it will stop the heat. this valve does not interfer will the engines cooling.
Wiki User
∙ 15y ago
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